Concrete-insert.



H a. NEWHALL, 1R.

CONCRETE INSERT. APPLICATION FILED FEB. 1, 1915.

Patentedfiept. 5, 1916. 2 SHEETS-3HEET r H. B. NEWHALL, JR. CONCRETE INSERT.

APPLICATION FILED FEB. I. 1915.

wmm

nvawtoz HENRYENEWHA .IJR.

sa a u Patented Sept. 5, 1916.

2 SHEETSSHEET 2.

HENRY B. NEWHALL, JR., 0F PLAINFIELD, NEW JERSEY.

CONCRETE-INSERT.

mammalian Specification of Letters Patent.

ioness.

Application filed February 1, 1915.

v a specification.

The main object of my invention is to construct a simple, reliable device of this character which can be readily installed and which will have a considerable range of adjustment and adaptability} The invention accordingly consists in making the bodyor insert proper with supporting ledges spaced widely enough apart to permit the passage of the head of the fixture supporting member or bolt therebetween and in supporting the bolt by means of a bridging member constructed so as to permit of its being inserted up between the ledges into a position where it bridges the ledges and lies beneath the head of the bolt. The so-called bridging member is in the nature of a washer, of a length suficient to bridge the supporting ledges and provided with a bolt-receiving opening therein enough larger than the shank of the bolt to permit said member being shifted into the sustaining position beneath the head of the bolt. lhe form of the enlarged bolt-receiving opening may vary, but usually it willbe made in the formof an elongated slot. This, inaddition to pro iding for the I installation of the bridging member beneath the bolt head provides for a considerable lateral adjustment of the bolt on the bridging member. The bridging member is preferably itself adjustable in the insert body, as by being longitudinally or rotatably shiftable therein, depending upon the form of the insert, which may be of rectangular, circular or other desired shape, and means, such as corresponding corrugations or teeth on the meeting faces of the supporting ledges and bridging member, are preferably provided for bolding the bridging member in the position to which it is adjusted.

Another special feature of the invention is the provision of a flangev or flanges on the top of the bridging member for holding the head of the fixture-supporting bolt against turning irrespective of the lateral adjustment of the bolt head on the bridgingmemher. The confining flange or flanges also Patented Sept. Serial Ito. 5,42%

reinforce the bridging member, a feature oi considerable importance.

Various other objects and features of invention will appear as "the specification proceeds. y

In the accompanying drawings 1 have illustrated several preferred embodiments of the invention but it will be'understood that various changes and modifications may be made without departing from the true spirit and scope of the invention. It will also be understood that the terms employed herein v are terms of description rather-than of limitation except as may be required by the prior art.

Figure 1, is an" end view of an embodiment of the invention parts being broken away to better disclose the construction. Fin is a side elevation. of the same, also pa lv broken away. Fig. 3, is a planview with parts broken away. Fif a, is a cross sectional view showing the insert embedded in a wall and illustrat by dotted. and full lines how the bridg 1g member or support is inserted up between. the ledges into sup porting position beneath the upraised he r of the bolt or fixture-sustaining element. Fig. 5, is a view on the order of 4 illustrating a modification wherein the bridging member or Washer is reinforced by second bridging member. 5" is a view from beneath, showing the bridging members of Fig. 5 with the bolt shank in'cross section. Fig. 6, is a horizontal sectional view of a modified form of the invention, the body here being of the cylindrical. type. Fig. 7, is a. vertical sectional view of another modification. Fig. 8, is a horizontal sectional view taken substantially on the plane of the line 8, 8 of 7, apart of the supporting washer being broken. away to show parts beneath the same.

The hollow body or base of the insert which sustains the weight and which may be termed the bearing member" is desig nated 11. v This member is emliedded in the material 12 of the ceiling, wall or other structural element, usually with its face flush with the surface 13 of the wall. The bearir member is provided with oppositely dis posed supporting ledges located at the base of the chamber 16 in said. member. These spaced apart supporting ledges pro vidc an entranceway 17 into the chamber.

all)

admit the head 18' of supporting element 19.

The bolt or lixture supporting element is siratuined in the bearing member by a. bridging member in the :lorin of a plate 20 which bridges the supgmrtinn' and lies beneath the bead. 18 of the l'ixi'ure support 1.). The bridging member formed with. an. enlarged bolt-reoeiriug opening therein shown in the first 'fm'i'i'i disclosed. us a slot 21 sli htly wider than the diameter or thickness of the belt or fixture siuiportand extending from one edge por- 'tion inward to a. point usua ly considerably beyond the center of the n'iei'nbcr. I propose in fact to extend. this slot substantially as for the edge of the tar supporting ledge substantially as indicated in Figs. 1 and 3 to allow for the bolt. being adjusted laterally theil ull width of the entrance slot 17. The bridging member is preferably provided with parallel upstanding flanges disposed at ()PPOSltB sides of and. substantially parallel to the slot therein and spaced. widely enough apart to receive the head of the bolt therebctwcen. In some cases only a single one of these flanges may be provided,

In using the invention the insert proper or hearing member is suitably embedded in the concrete, ordinarily by simply fastening it in proper position on the mold form before the concrete is poured, it being shown as having for that purpose lugs 2:" to receive nails :tor positioning it on the form. Firm anchora of the bearing member in the concrete is insured usually by providing it with outstunoing anchorage lugs orwings 26. In assembling} the fixture support, usually a ew bolt, but whose form may vary to suit lift-crest fixtures, first engaged in the Hearing member by inserting the head 18 'I meet up through the slot 1? between the the bolt or fixture- 7 support or bridging member 20 is then god over the bolt shank and tipped at le, as indicated in dotted lines in such that its upper end will pass up between one ledge and the bolt, the bolt bein' usually crowded over against the other as shown to provide as much space as possible for the passage of the member. li hen the bridging member has been piished is far enough into the chamber for its lower edge to clear the adjacent ledge, as in the full lines, Fig. at, the member can he slid over, and will ordinarily of its own wcwht, slide over, into position bridging the JO l edg'es The head of the bolt or ii'xture upport will now rest'upon and be su uiiorted by the bridging member between the ci'mliningr flanges 22, substantially as inl in l igs. 1, 2 and 3 and it may be atcrally thereon The upstanding flanges hold the head of the fixture s into the chamber 16 above the ledges.

support against turning but do not interfere with the lateral adjustment thereof. The flange or flanges furthermore reinforce and strengthen the bridging member.

In addition to permitting the described assemblage of the parts, the slot in the hearing member in the construction shown at lows for lateral adjustment of the bolt to the extent of the full width of the slot 17 between the ledges. l urtherumre in this first form illustrated the bolt can be set at any position in the full length of the hearing member by simply sliding the support along the ledges to the point desired. For the purpose of retaining the support and bolt in such longitudinally adjusted relation, I may provide the meeting faces of the ledges and the support. that is, the upper surfaces of the lmlges and the under surfaces of the support with inter-meshing teeth or corrugations as indicated at 35.

When the fixture support is as illustrated in the form of a screw bolt, either the enlarged integral portion or the nut of the bolt nia y be engaged with the bridgingmember, depending upon which end of the bolt it is desired to have exposed. In the latter instance, the nut would be considered as the head of the bolt'and treated as such in as scmbling the parts in the manner previously described.

In the construction illustrated in Figs. 5 and 5 a compound bridging member is provided, consisting of a main support 40, which bridges the ledges and a second support 41 which rests upon the first support and proi'ides a seat for the bolt head. Both these supports are in the form of washers, with bolt-receiving openings 42, made sulficicntly large to permit them to be tilted far enough to pass up between the ledges and into Supporting position beneath the bolt head. In this case it will be noted that the openings are larger than the cross sec tion of the bolt, and, therefore, permit of adjustment. The openings, therefore, may be considered elongated relative to the cross section of the bolt.

In Figs. 6. '7 and S l have indicated how the form of the insert andv the bridging member may be varied to suit different requirements. In Fig. 6 the bearing member is cylindrical in form, instead of the elongated shape shown in Fig. 3 and the parts of the supporting ledges 15 ell'ective at any one time are oppositely disposed. The bridging member 51 in this case differs from that first shown and is like that in F ig. 5, in that the bolt opening or slot 52 therein is not cut through from the extreme edge of the member, as it is in the first form. This form of the invention is assembled substantially in the same way as previously de scribed. In both Figs. 5 and 6 the bridging member on account of the closed character of the slot or bolt opening therein has to he slipped over the end of the bolt or fixturesupporting rod instead of being simply engaged laterally therewith as inthe first form.

The form shown in Figs. 7 and 8 is similar to that just described in that the insert or body 60 is cylindrical in shape, but in this case the bridging member or support 61 is of full circular shape. To permit the insertion of this circular member up into the insert I have shown the supporting ledges thereof as cut away at 62 at diametrically opposite points. These cuts are made wider than the thickness of the bridging member or Washer so as to allow the washer being pushed up therethrough, as indicated in dotted lines in Fig. 7. The washer is slotted at 63 to accommodate the bolt shank and it is evident that after being pushed up into the chamber it will fall naturally beneath the upraised head of the bolt therein or may readily be moved to proper position. In the cylindrical forms of the insert body it will be noted that by turning the bridging member and sliding the bolt in the slot there in the bolt can be set in any position in the opening 70 between the supporting ledges. These forms therefore are usually employed in situations where universal adjustment may be necessary. The bridging member in these cylindrical forms of the invention, may be provided with a confinin flange or flanges 71 similar to those first escribed.

The invention is readily installed and used, is simple and inexpensive to make and ments that may be necessary. And While the forms shownare the ones preferred at the present time I would have it understood that other forms may be developed and modifications may be made Without departbolt having a head on the upper end thereof provides by its construction for all adjusting from the true spirit and scope of the' invention.

What it claim is 1. A concrete insert comprising in combinatibn a supporting bolt having a head at its u per end, a chambered anchorage member aving oppositely disposed supporting ledges at tlie base of the chamber therein and ,spaced permanently apart a distance sufi ient to admit the head of the supporting 1 olt and aone-piece unitary bridging member longer than the distance between said spaced ledges and insertible while turned at an angle alongside the bolt shank up between the ledges into the chamber above the same into position beneath the upraised head of the supporting bolt within the chamber, whereupon said bridging member may then be straightened out into position bridging the ledges and beneath the head of the supporting bolt, said bridging member having an elongated slot formed wholly therein extending transversely of to the supporting ledges and wide enough to loosely receive the shank of the supporting bolt and adapted thereby to permit of the lateral'inovement of the one piece bridging member necessary in engaging said onepiece bridging member beneath the upraised head of the supporting bolt within the chamber and said chamber being of a height toreceive the head of the bolt and the tilted bridging member beneath the same.

2. A concrete insert comprising a charm bered anchorage member having longitudinally extending supporting ledges at the base of the chamber therein spaced apart in substantially parallel relation, a supporting of a slze to pass up between said spaced apart ledges and a one-piece unitary bridging member of a length greater than the-dis tance between. said spaced apart longitudinally extending ledges and provided with an elongated slot therein extending trans-- versely of the ledges and of a Width to loosely receive the shank of the supporting bolt, whereby to permit of the engagement of the bolt shank in the slot in the bridging member and the tilting of the bridging memher to an angular position wherein said bridging member will pass while tilted up between the supporting ledges into the chamber above the ledges and beneath the up raised head of the supporting bolt within the chamber and said chamber being of a height to receive the head of the bolt and the tilted bridging member beneath the same.

3. A concrete insert comprising in combination a supporting bolthaving a head at its upper end, a chambered anchorage member having oppositely disposed supporting ledgsat the base of the chamber .105-

therein and. spaced permanently apart a distance sufiicient to admit the head of the supporting bolt and a one-piece unitary bridging member longer than the distance between the spaced ledges and provided with an elongated slot therein as wide as the shanlr of the supporting bolt and extending from, .the central portion of the bridging member out through one end thereof to thereby permit of-said bridging member be ing engaged sidewise over the shank of the bolt and inserted while tilted at an angle up alongside the bolt into the chamber past the ledges and beneath the upraised head oi. the bolt therein, said chamber being of a height to receive the head of the supporting bolt and the tilted bridging member beneath the same, whereupon the said one-piece bridging member may then be straightened out into position bridging the supporting ledges E25 and supporting the bolt aforesaid.

LA concrete insert comprising in coins bination a supporting bolt having a head at its upper end, a chambered anchoragemerm her having oppositely disposed supporting its and a one-piece unitary bridging member supported on said ledges and adjustable to different positions thereon, said one-piece bridging member having teeth on 1ts under Face engaging the notches in the upper faces 0 of the ledges toanchor said one-piece bridg- .ing member in adjusted position on the ledges and being provided further with an elongated slot formed wholly therein extending transversely of the supporting ledges and receiving the shank of the supporting bolt, said chamber being of a height sufficient to receive the head of the bolt and the tilted bridging member beneath the same.

HENRY B. NEWHALL, JR. 

